A new Reagentfor the Detection of, Blood Pigment.-Prof. F. L. Sonnenschein ( Vierteljahrsch. f. gericht. undöffent. Med., 1872, No. 4) recommends a saturated solution of sodic tungstate, which has been previously acidulated with acetic acid, as a reagent for the precipitation of haemoglobin from solutions which contain it. This reagent forms, with all of the protein compounds, a precipitate, which is insoluble in dilute acids, but readily soluble in alkaline fluids, and is more delicate than

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... llon's reagent" (nitrate of mercury), which is generally * Second semi-annual Report.